Air-relief for liquid-receptacles.



No. 835,442. PATENTED N016, 1906. D.LANDAU'. AIR RELIEF FOR LIQUID RBGEPTAGLES.

APPLICATION FILED MAY 31. 1908.

UNITED STATES.

PATENT oFFIoE.

DEWIS LANDAU, OF SAN FRANCISCO, CALIFORNIA, ASSIGN OR TO LANDALI ECONOMIC SIPHON COMPANY, OF SAN FRANCISCO, CALIFORNIA, A

CORPORATION OF CALIFORNIA.

AIR-RELIEF FOR LIQUID-RECEF'TACLES.

Specification of Letters Patent.

Patented Nov. 6, 1906.

Original application filed December 7, 1905, s mi Ila-290,739. Divided and this application filed May 31,1906. Serial 110.319.641.

To aZl whom, it may concern:

Be it known that I, DEWIS LANDAU, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented new and useful Improvements in Air-Reliefs for Liquid-Receptacles, of which the following is a specification.

The object of the present invention is to provide means for facilitating the filling of liquid-receptaclessuch as siphon-bottles, barrels, kegs, or the like-and likewise for preventing the accidental escape of the air through the means so provided; and the present application is a division of that filed by me December 7, 1905, Serial No. 290,739.

In the accompanying drawings, Figure 1 is a broken vertical section of a siphon bottle equipped with my present improvements with the main valve closed. Fig. 2 is a broken sectional detail view showing said main valve open. Fig. 3 is a longitudinal section, and Fig. 4 is an end view, of a protecting device to prevent the accidental opening of the relief-cap.

Referring to the drawings, 1 indicates the receptacle. for the liquid, shown as a siphonbottle and provided in the usual manner with a tube 2, having a terminal 4. In the case of siphon-bottles said tube will be of glass and said terminal of metal; but it is to be understood that said terminal and other parts hereinafter described may be employed on other receptacles than siphonbottles, and said terminal may be supported in any manner on or adjacent to the receptacle containing the liquid, as on a bar or shelf above a beer-keg. on a pipe leading thereto, orin other ways, according to the requirements of each case. Said terminal 4 is formed with an annular peripheral chamber 5, communicating by ports 6 with vertical holes 7, by which the filling of the receptacle is facilitated, as hereinafter explained. The metal head 10 of the siphon or other receptacle is secured thereon in any usual manner, making a water-tight fit with said terminal 4 and said receptacle 1 by means of the washers 12 13, and said head has an airrelief port 15 in register with said annular chamber 5 and closed by the washer 17 and screw-cap 18. A thin metal outer sleeve 19 surrounds the cap 18, serving as a protector therefor to prevent accidental unscrewing thereof, since said sleeve 19 prevents turning other tool. discharge-nozzle 21 and the valve-seat 22 therefor, against which seats the valve 24, opening inwardly and operated by the pivoted cam-handle 26 through the headed and flanged sleeve or valve-stem 27 and the rod 28, which is tapped into said sleeve 27 and said valve 24, 30 being a compressible packing-ring around said rod to make a watertight joint where said rod passes through the partition 31 of said head 10, 34 being a coiled spring holding the valve 24 normally closed. Said stem 27 has a transverse slot 35, in which the cam end of the handle 26 works, and also has a threaded portion 36, which passes through an adjusting-nut 38, bearing on the end of the head 10, the end of said stem 27 terminating in a head 40. Said nut 38 and head 40 have holes 41 42 formed therethrough, respectively, for the breakable wires or cords of a seal 43. When the bottle is charged, said nut is turned to draw the valve 24 to its seat. The head 40 and nut 38 are then wired together and sealed, a wrapper 24, of foil, paper, or other material containing a trade-mark or other device, being opened by the handle 26 until the seal is broken and nut 38 slacked off to permit the valve to open to any desired degree. Manifestly the said nut 38 also provides a convenient and efiicient regulator for the said valve, whereby the degree of opening can be so regulated that there will be no sudden gush out and splash of the contents.

To refill the receptacle, the cap 18 is slacked off the port 15 by a suitable tool, so as to allow air to escape, the protective sleeve 19 preventing the accidental slacking of the cap by the fingers or during transportation. Then the main valve 24 is opened and the bottle refilled throu hthe spout21, the displaced air escaping during refilling by way of said slacked-off cap 18.

In the present application'I make no claim to the regulator and seal for controlling the discharge of the liquid from the receptacle, that invention forming the subject of a separate application of even date herewith, Serial No. 319,642.

said cap 18, except with a screw-driver or Said head is provided with the put on, if desired, and the valve 24 cannot be i l l 5 I claim 1. In an air-relief for liquid-receptacle fillers, the combination of a receptacle, a tubeterminal therein, having an air-relief chamber, a head for the receptacle having an airrelief port registering with said chamber, and a closure for said port, substantially as described.

2. In an air-relief for liquid-receptacle fillers, the combination of a receptacle, a tubet'erminal therein, having an annular reliefchamber and holes leading thereto, a head for the receptacle having an air-relief port registering With said chamber, and a closure for said port, substantially as described.

3. In an air-relief for liquid-receptacle fillers, the combination of a receptacle, a tube therein, said receptacle having an air-relief port leading therefrom, a screw for closing said port, and a loose protecting ring or shield around said screw, substantially as described.

4. In an air-relief for liquid-receptacle fillers, the combination, with an air-relief cap,

of a protecting-shield adapted to prevent accidental opening of the cap, substantially as described.

DEWIS LANDAU.

' Witnesses:

F. M. WRIGHT, J. E. GRANT. 

